/Engine/Plugins/Online/OnlineSubsystem/Source/Public/Interfaces/OnlineLeaderboardInterface.h
Reads stats for a given rank in the leaderboard, as well as a range of stats above and below that rank. For example, if Rank = 100 and Range = 10, entries for ranks 90-110 will be returned.
true if the call is successful, false otherwise
bool ReadLeaderboardsAroundRank ( int32 Rank, uint32 Range, [FOnlineLeaderboardReadRef](API\Plugins\OnlineSubsystem\FOnlineLeaderboardReadRef) & ReadObject )